4 Which two of the following statements about desertification are true? (a) Desertification occurs only in Southern Africa. (b) It is relatively easy to reverse with the proper agricultural techniques. (c) It refers to the inability of the soil to maintain its earlier levels of biomass production. (d) Desertification is not only limited to the arid and semi-arid regions of the world. The correct combination of alternatives is … . (1) (a) and (b) (2) (a) and (c) (3) (a) and (d) (4) (b) and (c) (5) (c) and (d)

4 Which two of the following statements about desertification are true

1.	4 Which two of the following statements about desertification are true? (a) Desertification occurs only in Southern Africa. (b) It is relatively easy to reverse with the proper agricultural techniques. (c) It refers to the inability of the soil to maintain its earlier levels of biomass production. (d) Desertification is not only limited to the arid and semi-arid regions of the world. The correct combination of alternatives is … . (1) (a) and (b) (2) (a) and (c) (3) (a) and (d) (4) (b) and (c) (5) (c) and (d)
Answer» The CORRECT ANSWER is 5. C and d